Overview
Base64 converts binary data into a printable alphabet made from letters, digits, +, /, and optional padding with =. It is designed for transport and storage in text-based systems, not for secrecy; anyone who recognizes the format can decode it.
Base64 appears in web tokens, email content, API bodies, certificates, scripts, file transfers, and malware analysis artifacts. It is often mistaken for encryption, but it is only a transport-friendly representation that can be reversed when the format is recognized.
In this lab, you practice identifying Base64-like strings, decoding them safely, and checking the decoded output for the next layer of meaning.
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